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Vol 28, No 4 (2022)
Case report
Published online: 2022-12-30

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Fenestration and duplication of contralateral internal jugular veins with concomitant cerebral arteries malformations

Mateusz Winder1, Joanna Pilch-Kowalczyk1
Acta Angiologica 2022;28(4):175-177.


Duplication and fenestration of IJV are rare malformations that are usually accidental findings during neck
surgeries and anatomical dissections. Their prevalence is estimated at 1–2%, while the prevalence of IJV
duplication alone is around 0.4%. This is the first reported case of both fenestration and duplication of the
contralateral IJVs and one of few that confirm the coexistence of vascular malformations in other vessels — in
this case, cerebral arteries. The awareness of the presence of IJV malformations can prevent complications
during surgeries in the neck area and vascular procedures such as IJV catheterization.

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